Time-of-flight method for determination of concentration of molecular impurity in atomic liquids

The method is suggested for estimation of molecular impurity concentration in atomic liquids. The method is based on significant influence of the molecule impurities on electron drift velocity in the mixtures. The influence can be detected from time-of-flight measurement of mobility of electrons injected in the mixture. The electron mobility in the mixture is different from the mobility in poor atomic liquid. The effect depends on molecule concentration. The scaling rule for electron transport coefficients (mobility, diffusion coefficients) in the mixtures allows to estimate the impurity concentration by comparison of the measured values of electron mobility with etalon values.